6.6   Search Source Button

The search source can be:

•    Search-Directory,
•    Search-File,
•    Sub-Directory, and
•    Segment-File.

For more information, please see the ImageFinder User’s Guide. The “Type” button specifies the search-source:

string [] strMode = { "Dir", "File", "Sub Dir", "F Segment" };

    internal int iMode = 0;

private void button3_Click(object sender, System.EventArgs e)

        {

            iMode = (iMode + 1 )% strMode.Length ;

            if (iMode == 0 )

                button3.Text = strMode[0];

            else if (iMode == 1 )

                button3.Text = strMode[1];

            else if (iMode == 2 )

                button3.Text = strMode[2];

            else if (iMode == 3 )

                button3.Text = strMode[3];

    }

Now, we implement the “Source” button:

private void button2_Click(object sender, System.EventArgs e)

        {

            input.searchSource( iMode );

        }

which in turn, calls the following function in the Input class:

public void searchSource (int iMode)

        {

            if ( iMode == 0 )

                searchSource0 ();

            else if ( iMode == 1 )

                searchSource1 ();

            else if ( iMode == 2 )

                searchSource2 ();

            else if ( iMode == 3 )

                searchSource3 ();

            else

                searchSource0 ();

        }//searchSource

The search source can be:

•    Search-Directory,
•    Search-File,
•    Sub-Directory, and
•    Segment-File.

For Search-Directory, the implementation is:

    private void searchSource0 ()//dir

    {

        if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )

            return;

        string cDir = System.IO.Directory.GetCurrentDirectory();

 

        f.textBox2.Text = cDir;

        f.richTextBox1.AppendText ( cDir +"\n" );

 

        filelist = in70.getDirList(cDir);

 

        if ( filelist == null )

            return;

        if ( filelist.Length == 0 )

            return;

 

        f.richTextBox1.Text ="";

        for (int i= 0; i < filelist.Length ; i++ )

            f.richTextBox1.AppendText ("" + i + " " +filelist[i] +"\n" );

 

        f.pictureBox2.Image = new Bitmap  (filelist[0] );

        f.richTextBox1.AppendText ( "Display the first image!\n" );

    }

The first section of code gets the current search directory via the open file dialog:

if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )

        return;

    string cDir = System.IO.Directory.GetCurrentDirectory();

The next section gets a string list of the image paths:

filelist = in70.getDirList(cDir);

The third section prints the string list of the image paths:

f.richTextBox1.Text ="";

    for (int i= 0; i < filelist.Length ; i++ )

        f.richTextBox1.AppendText ("" + i + " " +filelist[i] +"\n" );

The last section displays the first images:

f.pictureBox2.Image = new Bitmap  (filelist[0] );

To test, run the software and click the first image in folder, “c:\transapplet70\ex_wheel”.

Now, we implement Search-File:

    private void searchSource1 ()//file

    {

        if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )

            return;

        string cDir = f.openFileDialog1.FileName ;

 

        f.textBox2.Text = cDir;

        f.richTextBox1.AppendText ( cDir +"\n" );

 

        filelist = in70.getFileList (cDir);

 

        if ( filelist == null )

            return;

        if ( filelist.Length == 0 )

            return;

 

        f.richTextBox1.Text ="";

        for (int i= 0; i < filelist.Length ; i++ )

             f.richTextBox1.AppendText ( "" + i + " " +filelist[i] +"\n" );

 

        f.pictureBox2.Image = new Bitmap  (filelist[0] );

        f.richTextBox1.AppendText ( "Display the first image!\n" );

    }

There is only one line difference between Search-Directory and Search-File:

filelist = in70.getFileList (cDir);

The rest of the code is identical to Search Directory.

To test, run the software and select file, “c:\transapplet70\ex_wheel\input_file1.txt”.

Now, we implement Sub-Directory and File-Segment:

    private void searchSource2 ()//sub

    {

        if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )

            return;

        string cDir = System.IO.Directory.GetCurrentDirectory();

 

        f.textBox2.Text = cDir;

        f.richTextBox1.AppendText ( cDir +"\n" );

 

        filelist = in70.getSubDirList (cDir);

        if ( filelist == null )

            return;

        if ( filelist.Length == 0 )

            return;

 

        f.richTextBox1.Text ="";

        for (int i= 0; i < filelist.Length ; i++ )

            f.richTextBox1.AppendText ( "" + i + " " +filelist[i] +"\n" );

 

        f.pictureBox2.Image = new Bitmap  (filelist[0] );

        f.richTextBox1.AppendText ( "Display the first image!\n" ); 

    }

 

        private void searchSource3 ()

        {

            if ( f.openFileDialog1.ShowDialog () != DialogResult.OK )

                return;

            string cDir = f.openFileDialog1.FileName ;

 

            f.textBox2.Text = cDir;

            f.richTextBox1.AppendText ( cDir +"\n" );

 

            filelist = in70.getFileSegmentList (cDir);

 

            if ( filelist == null )

                return;

            if ( filelist.Length == 0 )

                return;

 

            f.richTextBox1.Text ="";

            for (int i= 0; i < filelist.Length ; i++ )

                f.richTextBox1.AppendText ( "" + i + " " +filelist[i] +"\n" );

                

            f.pictureBox2.Image = new Bitmap  (filelist[0] );

            f.richTextBox1.AppendText ( "Display the first image!\n" );

        }

Again, there is only one line difference between Search-Directory and these two functions.

To test the Sub-Directory, run the software and click the first image in folder,  “c:\transapplet70\ex_wheel\”.

To test Segment-File, run the software and select file, “c:\transapplet70\ex_wheel\ input_filesegment1.txt”.

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gina@attrasoft.com